When we receive service calls from grandparents desperately seeking to fix a broken heating system for their grandchildren, it breaks our hearts. We feel their love through the phone. We care about keeping your heating system healthy so no grandbaby ever endures a cold night.

Untreated Heating Oil

Treated Heating Oil

By this regular premium fuel oil treatment addition, we will increase burner efficiency and reduce overall operating costs. The fuel oil additives can also be used as a curative treatment when trouble starts.

Inhibit Microbial Growth

Dissolve Sludge

Improve Combustion

Cleaner Fuel System

Disperse Water

Minimize Corrosion

Prevent Gelling (Winter Freezing)

Does Your Heating Oil Delivery Company in DE, PA, or MD treat their fuel for extreme weather conditions?

If your heating fuel delivery company in New Castle County, Delaware, Southern Chester County, PA or Cecil County, Maryland does not treat their heating oil for cold temperatures, contamination, or sludge formation, consider using Hillside Oil Heating and Cooling.

At Hillside, our mission is to “Keep you cool in the summer and warm in the winter while doing customer service right“.

Join Our E-mail List 🙂

Email

Anti-Spam Checker

Please click on the box. We don't spam anyone and don't want to spam ourselves.

Hillside Oil Heating & Cooling has been family owned and operated for over 65 years. Three generations of family attitudes and values have allowed us to continue to successfully service our customers and communities. Everything about Hillside is locally owned and operated. We do not answer to any parent or mother corporation in some far-off land. Real human beings still work here and answer our phones. We have no touch-tone mazes to navigate in order to speak to a human being that can assist or answer questions. Customer service is the most important thing. We know what it is like to be a customer and how we like to be treated. We take pride in thinking like a customer when dealing with our customers. Support of Hillside is support for local, homegrown, family business in our area. Thank you from everyone at Hillside for your business. Hillside is a full-service home heating oil company as well as a full-service heating and air conditioning service company. We make daily deliveries of home heating oil, diesel fuels, and gasoline.

Please tell us which Worry-Free Winter Package you'd like to enroll in.

Worry-Free Winter

Worry-Free Winter Plus

Message

This contact form does not enroll you into any Worry-Free Winter package. Offers are subject to approval.
Our customer support team will contact you shortly after filling out this form. You can also call our office 302-738-4144 or 410-398-2146. Thank You.